Four blinkers around four blocks

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Four blinkers around four blocks
x = 10, y = 10, rule = B3/S23 2b3o2$2b2o2b2obo$2bo4bobo$9bo$o$obo4bo$ob2o2b2o2$5b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 4 THUMBSIZE 2 ]]
Pattern type Oscillator
Number of cells 24
Bounding box 10 × 10
Period 6 (mod: 6)
Heat 26.7
Volatility 0.94 | Unknown
Kinetic symmetry Unspecified
Discovered by Achim Flammenkamp
Year of discovery 1994

Four blinkers around four blocks is a period-6 oscillator which, in one generation, resembles four rotationally symmetric copies of a pre-block and blinker, hence its name. It is one of the smallest true-period-6 oscillators not based on unix. It was found by Achim Flammenkamp on July 26, 1994.[1]

A 12-glider-synthesis for this oscillator was found by Jason Summers in August 2004.[2] Another 16-glider recipe was found by Emerson J. Perkins and Dave Greene five years later.[3]

See also

References

  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 7, 2022.
  2. make-osc-p5-plus.rle from Jason Summers' pattern collections.
  3. Dave Greene (August 1, 2009). Re: The Online Life-Like CA Soup Search (discussion thread) at the ConwayLife.com forums

External links